5. Because the weather was bad, they couldn't continue the game.

Becasue + clause : Bởi vì

6. Cuong is the most hard-working in my class

cấu trúc so sánh hơn nhất: S + V + the MOST + adj

7 Frank and me have been friends for three years

hiện tại hoàn thành: S+ has/have + Vpp2 + for + khoảng thời gian

8. If you didn't drink too much coffee, you would be so nervous 

đk loại 2: If+ S+ quá khứ đơn, S+ would + V

`5`. The weather was bad, they couldn't continue the game.
`6`. Cuong is the most hard- working in my class.
`-` Cấu trúc : S + to be + the most + adj + N. ( so sánh nhất dài )
                    S + to be + the adj/adv + est + N
`7`. Frank and me have been friends for three years.
`-` Cấu trúc : S + have been PII + for/since tgian
`8`.  If you didn't drink too much coffee, you wouldn't be so nervous.
`-` Tạm dịch : Nếu bạn không uống quá nhiều cà phê, bạn sẽ không lo lắng như vậy.
`-` Cấu trúc : If + S + V(qkđ) , S + would/could ( not ) + V